Yarn-winding machine



D. N. AND R. C. PISCITELLO.

YARN WINDING MACHINE.

APPLICATION FXLED FEB. 7. 1918- Patented Nov. 30, 192%).

UNITED s'r 'ras PATENT OFFICE.

DOMINICK N. PISGITELLO AND ROY C. PISCITELLO, OF JERSEY CITY, NEW JERSEY.

' YARN-WINDING MACHINE.

GITELLO and R01 C. PISCITELLO, citizens of the United States, and residents of Jersey City, in the county of Hudson and State of New Jersey, have jointly invented certain new and useful Improvements in Yarn- VVinding Machines, of which the following is a specification.

The present invention relates to waxlng and trimming devices for yarn winding machines. In the preparation of yarn for knitting machines it is customary to rewind the yarn from skeins into spools or bobbins and it is customary to apply wax to the yarn while the operation of Winding the yarn into bobbins is taking place, by applying paraffin or some such material to the yarn. Heretofore, two general methods of waxing have been employed, one was to pass the yarn over or through a block or wheel of .wax as it left the reel and before it reached the bobbin. The other was to press a block of wax against the body of yarn as it was built up on the bobbin so that successive layers of yarn were supplied with more or less of a coating of wax. Our invention relates to this last mentioned method of waxing the yarn or of waxing the yarn when on the bobbin. 7

In former devices for waxing the yarn on the bobbin it has been customary to mount the wax carrying arm either over the cup which engages the bobbin to change the traverse of the yarn guide, in such manner that the cup was more or less restrained so that it could not turn freely or else the wax carrier was mounted on a rod some distance from the bobbin where the leverage caused it to bind on its guide and thereby resist the free adjustment by the cup. In the present case the wax holder is so mounted that the cup may turn very easily and therefore it is operated even when it touches the bobbin lightly, so that the adjustment of the arn guide is more sensitive.

Hiiretofore, it has been customary to employ a spring to hold the wax in contact with the bobbin and this arrangement has certain inherent disadvantages. One of its disadvantages is the uneven waxing of the yarn due to the fact that the spring presses the wax on the'bobbin more heavily when the latter engages the larger portion of the bobbin and lightly when the wax engages the smaller portion thereof and the amount Specification of Letters Patent.

Application filed February 7, 1918.

Patented Nov. 30, 1920.

Serial No. 215,941.

of wax applied to the yarn depends principally upon the pressure of the wax against the yarn. In the present device the yarn itself holds the wax against the bobbin of yarn and causes it to follow its contour as the wax rises and falls. By providing a devlce in which the yarn itself causes the wax to engage the bobbin it is possible to wax the yarn more evenly since the pressure can be the same on all parts of the bobbin. Furthermore, it is generally a disadvantage to apply more wax than is requlred as it rubs off in the knitting machine. In usmgthe present device it is possible to apply a lighter coating of wax than where a spring is used. The amount of wax applied may be regulated, however, by regulating the tension on the yarn.

It is customary in yarn winding to run the yarn through a cutting or trimming device for the purpose of removing the small burls,

small knives generally being used for the trimmers. It has generally been customary to wind the yarn a second time for the trimming operation, after it was first wound for the waxlng operation, as it has been difficult to properly perform the waxing and trimming operations during the same winding operation. VVit-h the present device it is possible to perform both the trimming and waxing operations efficiently at the same time, thereby making it unnecessary to rewind the yarn. The present device is very simple and it is easily reversible for either right or left winding.

In the drawing forming part of this application,"

Figure 1 is a plan View of a portion of a yarn winding machine, showing our invention adapted thereto.

Fig. 2 is an elevation thereof,

Fig. 3 is an elevation of parts of the device,-

Fig. 4 is a sectional view showing details of the construction, and

Fig. 5 is a sectional view taken on the line 5--5 of Fig. 1.

\Ve have shown but one bobbin and only such portions of the whole winding machine as is necessary to an understanding of our invention. It is to be understood that except for the differences shown 'herein the machine as a whole may be the same as any of the winding machines now in use.

We have shown a portion of the bobbin rail 1 to which the bobbin spindle 2 is at .regulating the traverse, as well as the waxing device, is arranged adjacent and parallel to'the bobbin rail 1 and it is adapted to be moved up and down a given extent by well known mechanism (not shown).

The yarn 4 is built up on the spindle .2

first in the form of a 'cone with its largest diameter at the bottom, as shown in Fig. 2,

a and after the desired maximum diameter is reached at the bottom the yarn feed or traverse is so adjusted that the lower portion of the bobbin builds up in cylindrical shape and the upper portion conical. It is understood that the spindle 2 is revolved in order to wind the yarn thereon.

The traverse rail 3 as is common practice in the art, is raised and lowered periodically and the same extent at each operation and thetraverse or yarn guide is automatically adjusted on the rail 3 from time to time in order to cause the bobbin to be built up in the required manner.

The traverse rail 3 carries a threaded spindle 5 fixed thereto, and there is mounted to rotate on this spindle the cup 6.v This cup will generally have a conical lower portion 7 which engages the larger portion of the bobbin and whenit so engages the cup is turned more or less by the bobbin and this causes the cup to advance upwardly on the spindle 5. The cup 6 has a hub 8 which fits loosely over a sleeve 9, the latter fitting loosely over the spindle 5, and a shoulder 10 of the sleeve rests against the top of the hub 8. There is a spring 30, on the cup and it has its free end bent in to engage the thread on the spindle 5. It will be apparent that with the end of the spring 30 engaging in the thread of the spindle 5 any turning motion ofthe cup will cause it to advance upwardly by reason of the spring being compelled to follow the thread of the spindle. This form of cup and its feed are well known in the art.

The wax holder as well as the yarn trim-' ming device are adapted to follow with the cup. There is a supporting arm 11 secured to the sleeve 8 by a bolt 31 so that the arm 11 must follow the sleeve and cup. There is an arm 12 extending from the arm 11 and it has a slot 13 to loosely receive the rod 14 fixed on the rail 3. The rod 14 permits the wax supporting device to rise and fall with the cup 6 but it prevents the arm 11 from turning.' There is an arm 15 fulcrumed to the arm 11 at 16 and this arm 15is adapted to swing horizontally in relation to the bobbin from the fulcrum 16 as its axis. This arm 15 carries both the wax and the yarn trimming devices, as well as the yarn guide.

There is a guide hook 17 attached at 18 to any burls on the yarn will be removed by 7 one or both of the trimming edges.

A fixed plate25 on the arm 15 acts as one member of a clamp to hold the block 24 of the wax or whatever material is to be rubbed on the bobbin, and the plate 19 extending parallel thereto acts as the other, both having-pins 26 which are forced into the block of wax for the purpose of gripping it. The arm 32 is adjustable along the arm 15 and it may be held in any desired position by means of the screw 29 according to the size of the block of wax.

When the device isfirst set into operation with the cup 6 in its lowest position the latter will move up and down with the traverse rail 3 while the bobbin spindle is revolving. The yarn will feed from the reel through the hook 17 and the trimming members 20 to the spindle 2, where it will gradually build up in the form of-a cone. The traverse of the cup and yarn guide, when the cup-is in its lowest position on the threaded spindle 5, will be such as to feed the yarn down to the lowest point of the bobbin spindle.

\Vhen the bottom portion of the body of yarn has reached the desired maximum diameter the cup will commence to engage this larger portion on its downward movements. lVhen this occurs the cup is turned slightly by the bobbin and this will cause the cup 6, 1

the guide hook 17 the trimmers 20 and the wax 24 to move upwardly on the spindle by reason of the fact that the spring 30 engages in and must follow the thread of the spindle 5. Thereafter, each time the cup 6 touches the bobbin when the rail 3 goes down, the above. mentioned parts are moved up slightly on the spindle 5. As the rail 3 moves up and down the same each time the above adjustment changes the traverse of the yarn guide in relation to the bobbin to secure the building action previously referred to.

In the present arrangement not only the yarn guide but also the waxing device and the trimming'device are adjusted to correspond so that the relationship of each with the bobbing is automatically adjusted by the action of the cup.

So far as we are aware this is the first instance where the trimming device has been adjusted to correspond with the change of position of the cup and wherein the trimming device is mounted to swing with the waxing device. As the thread guide travels up and down, so the trimming device moves, and the yarn is drawn through the knives at nearly the same angle or relation at all times. 7

As the block of wax moves up and down with the movement of the rail 3 it rubs against the outer layer of yarn on the bobbin. No spring is required, however, to keep the wax pressed against the bobbin and to cause it to follow the contour thereof as the wax rises and falls. As the yarn is drawn from the skein reel through the guide 17 and trimmers 20 and onto the bobbin there is more or less of a tension "on the yarn and this tension may be increased if desired by placing a tension on the skein reel. The tension on the yarn causes the latter to swing the arm 15 toward the bobbin and this action holds the block of wax against the bobbin by a light and quite even pressure so that the yarn on the bobbin is waxed uniformly and with just sufiicient wax for the purpose 'desired. As the wax engages the larger'portion of the bobbin its pressure thereon is not increased to the degree that it would be if it were pressed against the bobbin by a spring.

, With the present arrangement it is convenient to wax the yarn and to trim off the burls during the same winding operation, whereas, heretofore it has been considered necessary to rewind the yarn and to wax and trim during different winding operations.

Having described our invention, what we claim is:

1. A machine for winding yarn or the like, comprising a revolving member on which a bobbin or body of yarn is adapted to be wound, yarn guiding means adapted to guide the yarn to the bobbin, and means for holding wax or the like and arranged whereby the tension of the yarn as the latter feeds to the bobbin will operate said means to press the wax against the bobbin for the purpose set forth.

2. A machine for winding yarn or'the like comprising a revolving member on which a bobbin or body of yarn is adapted to be wound, traverse means movable in relation to the bobbin, yarn guiding means movable with said traverse means, means for holding the position of said wax holding means in relation to said traverse means. 3. A machine for winding yarn Or the like, comprising a revolvlng member on whlch a bobbin or body of yarnis adapted to be wound, traverse means movable in relation to the bobbin, means for holding wax against the bobbin, and means for trimming burls from the yarn, said Wax holding and said yarn trimming means being movable with said traverse means.

4. A machine for winding yarn or the like, comprising a revolving member on which a bobbin or body of yarn is adapted to be wound, traverse means movable in relation to the bobbin, means for holding wax against the bobbin, means for trimming the yarn, and a common support for said wax holding and said yarn trimming means movably supported by said traverse means.

5. A machine for winding yarn or the like, comprising a revolving member on which a bobbin or body of yarn is adapted to be wound, traversemeans movable in relation to the bobbin, means for holding wax against the bobbin, means for trimming the yarn, said wax holding and yarn trimming means being movable with said traverse means and means for automatically adjusting the positions of the wax holding and yarn trimming means in relation to the said traverse means.

6. A machine for winding yarn, comprising a revolving member on which a bobbin or body of yarn is adapted to be wound, traverse means movable in relation to the bobbin, swinging means, wax holding means on said swinging means, means for clearing burls from the yarn mounted on said swinging means, said swinging means being movable with said traverse means and said swinging means being operated by the yarn to hold the wax in contact with the body of yarn which is being wound.

Signed at Jersey City, in the county of Hudson and State of New Jersey, this 26th day of January, 1918.

DOMINICK N. PISCITELLO.

ROY C. PISCI'IELLO 

